Hey guys im new to the forums but not to paint ball. I just came across a VS3 and I have a couple of questions about parts im buying for it. This is my first HPA gun so thats the only thing I need understanding in.

1. Im looking for a tank. So far the size I want is 45ci but should i got 3000psi or 4500? I read that some come preset to 800-900 can someone explain that to me?

2. A good place to buy a Fasta LCD 18V loader (Smoke)

3. Barrel: Iv been reading that not all spyder barrels will work on the VS3. So does anyone have a site where VS3 barrels are available. Im looking to get a Trinity 14' one but nowhere does it say it will fit a VS3.

Thats about it. Sorry for the noobish questions but we all need to learn from someone.

As far as the tank, the 4500psi and 3000psi is merely the pressure the tank can hold. Obviously, the 4500psi tank holds more air, and will last you longer. They're also lighter normally, as the small capacity (48ci, 45ci, 72ci) tanks are normally aluminum, while the 4500psi tanks are always carbon fiber wrapped. Some 3000psi tanks (68ci, 92ci, 114ci) are carbon fiber wrapped, but are the same price or just a liiiiiiiiiiittle cheaper than a 4500psi tank. I'd personally go for a 68/45, fits almost every person perfectly for the proper form and is the industry standard to base efficiency on (1500 shots per tank, etc).

The 800-900psi that you mentioned being advertised is the output (HP, High Pressure in this case), which is the same output as a CO2 tank. LP (low pressure) tanks put put 400-500psi.